Update dependency postcss-loader to v8 (#83161)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

package.json

@@ -191,7 +191,7 @@
     "ngtemplate-loader": "2.1.0",
     "node-notifier": "10.0.1",
     "postcss": "8.4.35",
-    "postcss-loader": "7.3.4",
+    "postcss-loader": "8.1.0",
     "postcss-reporter": "7.1.0",
     "postcss-scss": "4.0.9",
     "prettier": "3.2.5",

yarn.lock

@@ -13923,7 +13923,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"cosmiconfig@npm:^8.2.0, cosmiconfig@npm:^8.3.5":
+"cosmiconfig@npm:^8.2.0":
   version: 8.3.6
   resolution: "cosmiconfig@npm:8.3.6"
   dependencies:
@@ -13940,6 +13940,23 @@ __metadata:
   languageName: node
   linkType: hard
 
+"cosmiconfig@npm:^9.0.0":
+  version: 9.0.0
+  resolution: "cosmiconfig@npm:9.0.0"
+  dependencies:
+    env-paths: "npm:^2.2.1"
+    import-fresh: "npm:^3.3.0"
+    js-yaml: "npm:^4.1.0"
+    parse-json: "npm:^5.2.0"
+  peerDependencies:
+    typescript: ">=4.9.5"
+  peerDependenciesMeta:
+    typescript:
+      optional: true
+  checksum: 10/8bdf1dfbb6fdb3755195b6886dc0649a3c742ec75afa4cb8da7b070936aed22a4f4e5b7359faafe03180358f311dbc300d248fd6586c458203d376a40cc77826
+  languageName: node
+  linkType: hard
+
 "create-emotion@npm:^10.0.14, create-emotion@npm:^10.0.27":
   version: 10.0.27
   resolution: "create-emotion@npm:10.0.27"
@@ -15766,7 +15783,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"env-paths@npm:^2.2.0":
+"env-paths@npm:^2.2.0, env-paths@npm:^2.2.1":
   version: 2.2.1
   resolution: "env-paths@npm:2.2.1"
   checksum: 10/65b5df55a8bab92229ab2b40dad3b387fad24613263d103a97f91c9fe43ceb21965cd3392b1ccb5d77088021e525c4e0481adb309625d0cb94ade1d1fb8dc17e
@@ -18616,7 +18633,7 @@ __metadata:
     papaparse: "npm:5.4.1"
     pluralize: "npm:^8.0.0"
     postcss: "npm:8.4.35"
-    postcss-loader: "npm:7.3.4"
+    postcss-loader: "npm:8.1.0"
     postcss-reporter: "npm:7.1.0"
     postcss-scss: "npm:4.0.9"
     prettier: "npm:3.2.5"
@@ -24831,17 +24848,23 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss-loader@npm:7.3.4":
+"postcss-loader@npm:8.1.0":
-  version: 7.3.4
+  version: 8.1.0
-  resolution: "postcss-loader@npm:7.3.4"
+  resolution: "postcss-loader@npm:8.1.0"
   dependencies:
-    cosmiconfig: "npm:^8.3.5"
+    cosmiconfig: "npm:^9.0.0"
     jiti: "npm:^1.20.0"
     semver: "npm:^7.5.4"
   peerDependencies:
+    "@rspack/core": 0.x || 1.x
     postcss: ^7.0.0 || ^8.0.1
     webpack: ^5.0.0
-  checksum: 10/234b01149a966a6190290c6d265b8e3df10f43262dd679451c1e7370bae74e27b746b02e660d204b901e3cf1ad28759c2679a93c64a3eb499169d8dec39df1c1
+  peerDependenciesMeta:
+    "@rspack/core":
+      optional: true
+    webpack:
+      optional: true
+  checksum: 10/06040d1b3819bae0c1d6b209646e1e9c1924d7a6acb7dd8bde2fc6e57b0b330e5386eb11a62f81f6f80de15e57cdab49191125ab464debb721e94e6d39c1da2e
   languageName: node
   linkType: hard